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llvm-mirror/test/Transforms/GVN/load-constant-mem.ll
David Blaikie ab043ff680 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

llvm-svn: 230794
2015-02-27 21:17:42 +00:00

14 lines
322 B
LLVM

; RUN: opt < %s -basicaa -gvn -instcombine -S | grep "ret i32 0"
; PR4189
@G = external constant [4 x i32]
define i32 @test(i8* %p, i32 %i) nounwind {
entry:
%P = getelementptr [4 x i32], [4 x i32]* @G, i32 0, i32 %i
%A = load i32, i32* %P
store i8 4, i8* %p
%B = load i32, i32* %P
%C = sub i32 %A, %B
ret i32 %C
}